# 1 "src/mul.c"
# 1 "<built-in>"
# 1 "<命令行>"
# 31 "<命令行>"
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 32 "<命令行>" 2
# 1 "src/mul.c"
# 1 "include/head.h" 1



int add(int, int);
int sub(int, int);
int mul(int, int);
double div(int, int);
# 2 "src/mul.c" 2

int mul(int a, int b){
    return a*b;
}
